Frequencies for first 10,000 rows of rx6v1c2 variable in nhamcsopd2010 dataset :

   for rx6, |
 level 1 of |
multum drug |
category #2 |      Freq.     Percent        Cum.
------------+-----------------------------------
            |      9,750       97.50       97.50
        001 |         18        0.18       97.68
        020 |          1        0.01       97.69
        040 |         58        0.58       98.27
        057 |         26        0.26       98.53
        081 |         70        0.70       99.23
        097 |         13        0.13       99.36
        105 |          5        0.05       99.41
        113 |          1        0.01       99.42
        115 |          7        0.07       99.49
        122 |         29        0.29       99.78
        133 |          4        0.04       99.82
        218 |          5        0.05       99.87
        242 |          3        0.03       99.90
        254 |          1        0.01       99.91
        358 |          9        0.09      100.00
------------+-----------------------------------
      Total |     10,000      100.00

by Jean Roth , jroth@nber.org , 28 Mar 2016